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Finding the Fourth Proportional to 610,919.10, 916,609.05 and 295,655.10

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Solution

The fourth proportional to 610,919.10, 916,609.05 and 295,655.10 is: 443,594.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,919.10 : 916,609.05 = 295,655.10 : x
  2. Step 2: Convert to fraction form
    610,919.10/916,609.05 = 295,655.10/x
  3. Step 3: Cross multiply
    610,919.10x = 916,609.05 × 295,655.10
  4. Step 4: Simplify right side
    610,919.10x = 271,000,140,338.66
  5. Step 5: Solve for x
    x = 271,000,140,338.66/610,919.10
  6. Step 6: Final answer
    x = 443,594.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.